摘要
文章以网络支路阻抗方程作为电网数学模型，系统地研究了配电网故障计算的通用方法。根据配电网少环的结构特点和固态限流器的工作原理，利用叠加原理、多端口戴维南定理和相序参数变换技术，提出了一种能自动适应网络操作、对故障类型没有限制、可计及固态限流器作用的配电网故障计算通用方法。这种方法具有无需形成配电网复数节点导纳参数矩阵或阻抗参数矩阵、极易在计算机上实现等特点。
In this paper, based on network branch equation, a canonical method for calculating faults in a distribution network is systematically studied. According to the working priciple of solid state fault current limiters, the simulation method is proposed. On this basis, according to the weakly meshed structure charicteristic of a distribution network, by applying superposition theorem, multi dimensional thevenin theorem and phase sequence transformation technique, a canonical method for calculating faults in a distribution network is presented. The method of this paper can be adaptable to network changes in topology, deal with any type of faults in a distribution network with or without solid state fault current limiters and has the advantages of calculating faults without constituting the nodal admittance (or impedance) matrices of a distribution network and easy implementation on computer.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1999年第7期41-44,48,共5页
Proceedings of the CSEE
关键词
配电网
固态限流器
故障计算
数学模型
weakly meshed distribution network
solid state fault current limiter
network branch equation
canonical method for fault calculation
